Refactoring: More OO, less module-level code #16
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""" WalkthroughThis change removes the Changes
Sequence Diagram(s)sequenceDiagram
participant Main
participant DocumentationIndex
participant Settings
Main->>DocumentationIndex: fetch_cratedb_docs(url)
DocumentationIndex->>DocumentationIndex: url_permitted(url)
alt URL permitted
DocumentationIndex->>DocumentationIndex: client.get(url)
else URL not permitted
DocumentationIndex-->>Main: Raise error or deny
end
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amotl
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LGTM as a 1:1 refactor, but I'm not into the context so will let others approve. |
Introduce `DocumentationIndex` and `Settings` classes.
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🧹 Nitpick comments (1)
cratedb_mcp/util/sql.py (1)
13-14: Instance creation for static methodsCreating an instance of
Settingsis unnecessary since you're only using static methods. Consider using the class directly.-settings = Settings() -Then update line 27 to use:
- is_dql = SqlStatementClassifier(expression=expression, permit_all=settings.permit_all_statements()).is_dql + is_dql = SqlStatementClassifier(expression=expression, permit_all=Settings.permit_all_statements()).is_dql
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📒 Files selected for processing (5)
cratedb_mcp/__main__.py(2 hunks)cratedb_mcp/knowledge.py(2 hunks)cratedb_mcp/settings.py(1 hunks)cratedb_mcp/util/sql.py(2 hunks)tests/test_util.py(2 hunks)
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🧬 Code Graph Analysis (2)
cratedb_mcp/util/sql.py (1)
cratedb_mcp/settings.py (2)
Settings(12-48)permit_all_statements(18-34)
tests/test_util.py (1)
cratedb_mcp/util/sql.py (1)
sql_is_permitted(16-32)
🔇 Additional comments (13)
cratedb_mcp/settings.py (1)
12-48: Looks good: Encapsulating settings into class methodsThe refactoring to a
Settingsclass with static methods is a good OO approach. This provides a centralized location for configuration and handles environment variable parsing and validation in a cleaner way.A couple minor points:
- Consider addressing the TODOs for tests (lines 31 and 45) now rather than deferring them
- The error message in line 31's comment about integers is misleading since you're converting to boolean
cratedb_mcp/__main__.py (2)
4-5: Clean import refactoringGood job simplifying the imports by removing
hisheland related constants.
35-37: Proper encapsulation of URL permission and HTTP clientThe refactoring correctly moves URL permission checks and HTTP client usage into the
DocumentationIndexclass, which aligns with the OO approach.cratedb_mcp/util/sql.py (2)
8-8: Good update of import to use Settings classThe import was correctly updated to use the new
Settingsclass rather than a module-level constant.
27-27: Updated to use Settings method appropriatelyThe code correctly uses the new
permit_all_statements()method from theSettingsclass.tests/test_util.py (3)
1-4: Added necessary imports for environment variable testingGood addition of the required imports for the updated tests.
20-26: Good test for environment variable success caseThis test properly verifies that:
- Setting the environment variable to "true" enables all SQL statements
- A warning is emitted when all statements are permitted
This aligns with the refactoring to environment variable-based configuration.
28-34: Good test for invalid environment variableThis test properly verifies that:
- Setting an invalid value for the environment variable causes the permission to be denied
- An appropriate warning is emitted about the invalid environment variable value
This ensures proper error handling in the refactored code.
cratedb_mcp/knowledge.py (5)
2-3: Good modularization with improved imports.The addition of typing and structured imports from the new Settings module aligns well with the objective of making the code more object-oriented.
Also applies to: 5-5, 8-9
116-124: Well-structured class attributes for configuration.Moving the settings and permitted URLs into class-level attributes implements good encapsulation. The list of permitted URLs is clearly defined with appropriate documentation, making the security boundaries explicit.
125-132: Good constructor implementation with improved HTTP client configuration.The initialization of the Hishel HTTP client with caching is well-structured, using the settings object to retrieve the cache TTL. This approach properly integrates the caching logic into the class and makes the dependency on the settings explicit.
136-140: Appropriate cache configuration with dynamic TTL.Using the settings object to configure the TTL for the cache is a good practice. Setting the TTL to slightly less than the docs cache TTL is a thoughtful detail to prevent edge cases where the cache might expire while being used.
143-159: Good encapsulation of URL permission logic.Moving the URL permission logic from a standalone function to an instance method increases cohesion and aligns with object-oriented principles. The method is well-documented with clear purpose, parameters, and return values.
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Just a bit of refactoring before the first release, adding classes
DocumentationIndexandSettings, to bundle relevant topic matters.